63783522916 has 27 divisors (see below), whose sum is σ = 112365943627. Its totient is φ = 31680373760.

The previous prime is 63783522911. The next prime is 63783522917. The reversal of 63783522916 is 61922538736.

The square root of 63783522916 is 252554.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 51216216100 + 12567306816 = 226310^2 + 112104^2 .

It is a Duffinian number.

Its product of digits (3265920) is a multiple of the sum of its prime divisors (840).

It is not an unprimeable number, because it can be changed into a prime (63783522911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 99505956 + ... + 99506596.

Almost surely, 2^63783522916 is an apocalyptic number.

63783522916 is the 252554-th square number.

It is an amenable number.

63783522916 is a deficient number, since it is larger than the sum of its proper divisors (48582420711).

63783522916 is an frugal number, since it uses more digits than its factorization.

63783522916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680 (or 840 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 52.

The spelling of 63783522916 in words is "sixty-three billion, seven hundred eighty-three million, five hundred twenty-two thousand, nine hundred sixteen".